Air-cooling system for gas-engines



D. L. HARRIS.

AIR COOLING SYSTEM FOR GAS ENGINES.

APPLICATION HLEO JULY 12, I920.

am-0&7.-

l/VVEN TOR ATTORNEY sits BANEEIZI I. HARELEFS, 135*.WIUHI'I'A, Iliidthl'fifiili.

'Appl'lcetion filed 311131 e,

To all w/wm it may concern Be it known that I. DANIEL L. Hermie, a

' System for Gee-Engines, of which the following is a description, referring to the drawings accompanying this specification. The invention relates especially to an oppemtus and assemblegeof mechanical elements adapted forcooling the engine as employed in motor cars and like vehicles,

-' generally in present practice using 9. redietor and Water .in circuletion'for cooling purposes. It will he understood that while the mechanism as described refers to on so cessory for edaptotion' to use in such engines and the'cliscarding of their present Water cooling apparatus and mesns thet my in vention is equally adapted for installation in new engines, properly designed and constructed with a view of making my invention at composite element therewith. The further advantages will be explained more fully in the description of the drawings, in which Figure 1 shows a side elevation of e gas engine such as is commonly employed in motorcars and with my apparatus installed therewith in combination. Fig. 2 is it cross sectional view taken along the line Q-T-Q. in

V, Fig. 1 and looking. in the direction of the mechanism operatin arrows, with a part of the fan case broken away to show the fan. Fig. 3 is s "fragmentsry side elevation of the reermost portion of the j aeket seen in Fig. 1 end within which as in common practice writer is adopted to circulate. Fig. 4; represents a vertical sectionel view taken through the conductor leading to the incloscd fen case, and showin a. side elevation of a portion of the to reduce the size of the air passage on or specified conditions. Fig. 5 is a sectional View taken along the line 5--5 in Fig. 4 and looking in the direction of the arrows. Fig. (5 is a vertical sectional view taken along the rear portion of an engine block and jecket of Fig. 1 showin the opposite end of the device as employed with the mechanism illustrated in Figs. t and 5 for reducing the air passage. Fig. 7 is a longitudinal view of this niechsnism as seen in Fig. 6. Similar numerals of reference indicate corresponding parts throughout the drawings.

Referring to the drawings, 10 represents simulate the I Specification of Letters Eetent.

Patented Nov. 1.5, 192d.

1920. Serial he. comes. l

the jacket surrounding the cylinders 11 of o well hnown type of gas engine as employed in motor car manufacture and in which a cooling see such as Water is so adopted to circulate. In Water cooled motors, ithin a. frame 12 a honey comb d core or similar structure is employed as e' racliotor and the water by means of e pump or through other; principles as employed is forced to circulate through the jacket to absorb the heat developed Within the cylinders and then lose the heat through radiation es the Water filters through the core in its circulatory movement beck gigsin to and through the jacket. ltis well understood that a means of cooling the. cylinders is necessary for the proper functioning of the engine and in my invention this cooling is secured through a forced ilovv of indrewn 8.11 circulating through the jacket, in lieu of water, Where it absorbs the heat as developed in the cylinder walls, the .air thence is expelled into the atmosphere, a fresh supply of sir being continually admitted hr 50 cooling purposes. In my invention the water core is removed from the radiator-"frame 12 or in new installations entirely eliminated in the design. The front face of the frame 12 as indicated at 13 is preferably of s.

screen or perforated plate construction to appearance of presentjlradietor constructions.

A funnel like horn 14, preferebl, extendin inwardly from the rear "oit e screen so,

13 is provided with a bell like opening at 15 to admit alI.- This horn 14: connects by means of e' flexible coupling 16 to e pipe 17,. The pipe 17 leads to the rear of the jacket 10 end to which it connects, a port 1.8 being out through the jacket wall to register with the bore of the pipe 17 to receive the inclrswn air. The pipe 17 preferably forks at 19 end by means oi a flanged bolted connection .90 connects to the port through the jacket 10 which in common practice admits the incoming water to the jacket for circulating purposes. in my invention it i is deemed preferable to close this port and use the forked connection ill-20 as e sno- Ne port for the pipe l? though if desired the opening there int the jacket 10 rosy be left to also receive indrsrwn air.

Leading freon the jiiclret'lfl at 21 is e ipe which in ordinary practice is employed to .11 3 conduct water toward the radiator. In my invention, the pipe ill connects to aconduc section oi the @ITOW; this fan ro tor 22 by means of e flexible coupling 16*. The conductor opens into an. inclose fen case 23. [it 2% is a belt Wheel driven by the engine shaft 25. A. fan belt 26 leads to the belt wheclQfi' on the shaft 28 which carries it "fen Wheel 29 rotctehly mounted within the case end which during engine operation is adopted to revolve in the dition then creates s suction which draws air through the opening and maintains s. coi'istent circulotion of: air through the hem 14% pipe 1?, jacket 10 Where the absorbs the hea t as generated. thence is drawn outwardly through the 21 and fan case 3 as in" dicsted by oriows in Fig. o and iron). which it is ejected ieoi'wezrdly t'irough the orifice 30 in the case as w l be readily undesstood. My invention thus permits all types of water cooled motors to be remodeled into air cooled motors without materially iug their outward appearance or design and at s minimum expense and eliminates the dead weight oi the Water and cord. iy mechanisms usually employed and dam; s incident to- Winter travel occasioned y frcezeups. I

In Fig. S2 is illustrated one method of aid lusting and securing the case 23 to the redietoi' frame 1:2 it being understood that l do not restrict myself to this assemblage. Bracket nsmbets fill pivotrilly engage with the case 23 and pivotelly engage as at 32 with side lugs on the Walls of the frame l2 in any mechanical manner. A top member 34 on the case 23 coupled as at 35 to o member integral with the frame 12, for instance at the radiator cap 37 permits of adjustment of the ion-belt 26 by means of the adjustable coupling It will be understood that a chain and sprocket wheels may be employed in lieu of the belt 26 and belt Wheels 24 and 2! when desired. v

Under certain conditions, such in Wintei" Weather, it may desirable to reduce the bore of the conductor so as to reduce the Volume of air flowing through th e jacket 10 and thereby oi'event the engine from hecoming too cool, it being Well understood that it cold engine does not operote as well as when heated to certain degree.

A lever is pivotslly connected at 39 t0 lugs carried by the outer end of the bore of the conductor 22. This outer end 01": the

levelis bent at 40 to conform to the curve j'scket Wall at and camped without some at 15. The fi'ont end oi the pipe 4.3 is socured at 4-6 to the lUQKi'HQiYElRSS in Yes-t7 oi soot e"? the pivoted lever 38. brass rod 4:7 is 101;

d8 abuts the end of the rod -17 to form a, seat for the compression spring olso seated against the inner face of thecap 45. The inner end of the :"od 4:? pivotelly engages at 51 with the upper end of the lever 38 as clearly illustrated.

In the assemblage disclosed in Fig. 4.- the engine is assumed to be operating and the full air capacity in circulation through the various parts of the assemblage and through the conductor 22. The inclosed brass rod is thus heated and by its expansion has under the spring resistance 45 acted against the pivoted end 531 of the lever 38 so that the disk end 42- has been :toi'ced to against tlie wali of the conductor 22 as illustrated. Vi hcn the engine is cold 01 when in winter driving the indrawn air tends to cool the ehgine to a. greets? degree than is desirable "for operating purposes, the brass rod 47 also cools and thereby contracts and being secured hythe bolt 48. this rod contraction operates to draw inwordh n the pivoted end 51 of the lever 38 or so that the disk end 4-2 is moved. as indicated by the dotted line to the dotted position 42 so that it stands across and in the boreyot the condimtor 2%: thereby reducing the size of the air essoge through such conductor and limits the omou'ct oi sir in circulation; this 1. An air cooling system for internal comhustion mot-Q's, including on air inlet device coupled to the acket system of the motor, eninclosed felon-case coupled to the outlet conductoc leading from the jacket a, valve arranged in said outlet conductor.

and normally open to permit passage of the air from the jacket into the ion case for expulsion; and members, operstively connected with said wilt/e, arranged within said air-passage and adapted to contract when cooled to an undesirable degree, which contraction operates to eiiect a closing velvw lli movement to limit the air-circulation; all for thie 'ourposes as specified.

2. In combination, a jacket surrounding the cylinders of o gas engine, an outlet pipe leading therefrom, a. conductor flexibly coupled to said pipe, 1:. lever pivotally mounted withinsaid conductor, apipe er- 7 ranged Within said outlet pipe and out wzgrdly secured by means of a cap engaging externally thewall of said jacket; a brass rod arranged within said pipe and pivotafiy connecting at one end 5 a crank poifien 0'5? said lever, a bolt inwardly secured from saii cap to an engagement with said brass red;

a spring bearing between said rod'end cap,-

said brass rod being adepfieii during engine operation to expand and'elongate under mi"- tain specified condiiiions-to eccasion a move meme? menb pf said pivoted lever such sis to deer the bore of said oonducter and under other specified conditions to contract to occasion is,

zineppnsite movement of said pivoted lever wherebynn innenenlarged portion of saidlever will be transversely arranged Within the bore of said ndueter, all for the pur-j' 

